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Finding the Fourth Proportional to 178,903, 246,886.62 and 99,415

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Solution

The fourth proportional to 178,903, 246,886.62 and 99,415 is: 137,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,903 : 246,886.62 = 99,415 : x
  2. Step 2: Convert to fraction form
    178,903/246,886.62 = 99,415/x
  3. Step 3: Cross multiply
    178,903x = 246,886.62 × 99,415
  4. Step 4: Simplify right side
    178,903x = 24,544,233,327.30
  5. Step 5: Solve for x
    x = 24,544,233,327.30/178,903
  6. Step 6: Final answer
    x = 137,192.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.